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DE3264604D1 - Acoustic surface wave device - Google Patents

Acoustic surface wave device

Info

Publication number
DE3264604D1
DE3264604D1 DE8282300487T DE3264604T DE3264604D1 DE 3264604 D1 DE3264604 D1 DE 3264604D1 DE 8282300487 T DE8282300487 T DE 8282300487T DE 3264604 T DE3264604 T DE 3264604T DE 3264604 D1 DE3264604 D1 DE 3264604D1
Authority
DE
Germany
Prior art keywords
wave device
surface wave
acoustic surface
acoustic
wave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8282300487T
Other languages
German (de)
Inventor
Kuninori Kawaura
Sumio Yamada
Noboru Wakatsuki
Masaaki Ono
Shigeo Tanji
Yoshiro Fujiwara
Masanobu Yanagisawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE3264604D1 publication Critical patent/DE3264604D1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02866—Means for compensation or elimination of undesirable effects of bulk wave excitation and reflections

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE8282300487T 1981-01-30 1982-01-29 Acoustic surface wave device Expired DE3264604D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56012536A JPS57127321A (en) 1981-01-30 1981-01-30 Surface acoustic wave filter

Publications (1)

Publication Number Publication Date
DE3264604D1 true DE3264604D1 (en) 1985-08-14

Family

ID=11808045

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282300487T Expired DE3264604D1 (en) 1981-01-30 1982-01-29 Acoustic surface wave device

Country Status (4)

Country Link
US (1) US4426595A (en)
EP (1) EP0057598B1 (en)
JP (1) JPS57127321A (en)
DE (1) DE3264604D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234955A1 (en) * 1982-09-21 1984-03-22 Siemens AG, 1000 Berlin und 8000 München SURFACE WAVE FILTER AND METHOD FOR PRODUCING THE SURFACE WAVE FILTER
JPS6237441U (en) * 1985-08-22 1987-03-05
US4745321A (en) * 1985-10-24 1988-05-17 Texas Instruments Incorporated Reflective array surface acoustic wave device
US4680497A (en) * 1986-04-28 1987-07-14 Northern Telecom Limited Surface acoustic wave devices
JP3270042B2 (en) * 1991-03-28 2002-04-02 エプコス アクチエンゲゼルシャフト A surface acoustic wave device having a surface acoustic wave structure for preventing generation of an obstacle acoustic wave component
JP2000181461A (en) 1998-12-10 2000-06-30 Kumamoto Nippon Denki Kk Sound absorbing device for machine generating mechanical noise
JP2004297693A (en) * 2003-03-28 2004-10-21 Fujitsu Media Device Kk Method for manufacturing surface acoustic wave device and surface acoustic wave device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5847089B2 (en) * 1976-02-10 1983-10-20 株式会社東芝 Color television receiver PIF surface wave filter
JPS5333557A (en) * 1976-08-24 1978-03-29 Toshiba Corp Elastic surface wave element
US4146851A (en) * 1977-06-23 1979-03-27 Gte Laboratories Incorporated Acoustic surface wave device
JPS5533341A (en) * 1978-08-31 1980-03-08 Toshiba Corp Elastic surface wave device

Also Published As

Publication number Publication date
EP0057598A3 (en) 1982-09-08
EP0057598B1 (en) 1985-07-10
JPS57127321A (en) 1982-08-07
EP0057598A2 (en) 1982-08-11
US4426595A (en) 1984-01-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee